The Ruddigore arrangement requires nine players:
Flute (+picc.)
Violin
Oboe
Clarinet in Bb & A
Horn
Bassoon
Double Bass
Percussion ‡
Piano
A full conductors’ score is also supplied.
‡ Percussion: Two Timpani, Triangle, Snare drum, Cymbals and Bass drum (played together, military band style).
How to order this arrangement.
There are some extracts from Southampton Operatic Society's 2008 production using this arrangment on YouTube.
Here's the full YouTube playlist